[RFC PATCH net] rxrpc: Fix missing dependency on NET_UDP_TUNNEL

The changes to make rxrpc create the udp socket missed a bit to add the
Kconfig dependency on the udp tunnel code to do this.

Fix this by adding making AF_RXRPC select NET_UDP_TUNNEL.

Fixes: 1a9b86c9fd95 ("rxrpc: use udp tunnel APIs instead of open code in rxrpc_open_socket")
Reported-by: kernel test robot <redacted>
Suggested-by: Vadim Fedorenko <redacted>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Xin Long <lucien.xin@gmail.com>
cc: alaa@dev.mellanox.co.il
cc: Jakub Kicinski <kuba@kernel.org>
---

 net/rxrpc/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/rxrpc/Kconfig b/net/rxrpc/Kconfig
index d706bb408365..0885b22e5c0e 100644
--- a/net/rxrpc/Kconfig
+++ b/net/rxrpc/Kconfig

@@ -8,6 +8,7 @@ config AF_RXRPC
        depends on INET
        select CRYPTO
        select KEYS
+       select NET_UDP_TUNNEL
        help
          Say Y or M here to include support for RxRPC session sockets (just
          the transport part, not the presentation part: (un)marshalling is